石油储罐用调质高强钢中铬的机理研究  

Mechanism of Chromium in Quenched and Tempered Steel

作　　者：李国宝[1] 田世永[1] 王勇[1] 

机构地区：[1]济南钢铁集团有限公司

出　　处：《宽厚板》2011年第6期12-15,共4页Wide and Heavy Plate

摘　　要：通过对低碳合金钢中加入Cr元素,采用不同的保温时间下,Cr对低碳合金钢调质后性能的影响研究,并选择不加Cr的相同成分的合金钢与之做对比。通过金相组织观察发现Cr能够有效地提高低碳合金钢的淬透性,淬火后即使钢板的芯部也能获得贝氏体组织。Based on the low carbon alloy steel added with Cr element, the article studies the effect of Cr on the properties of low carbon alloy steel with different holding times, compares with the steel of similar chemical composition without adding Cr element. From the metaUographic structure observation, Cr can effectively improve the hardenabi｜ity of the tow carbon alloy steel, result in bainite structure in the center of the steel plate after quenching for the subsequent tempering.

关 键 词：调质高强钢 淬透性 碳化物 

分 类 号：TG142.4[一般工业技术—材料科学与工程]